There was a lot of sad faces to go around following game 7 between the Canadiens and Maple Leafs as the Leafs gave up a 3-1 series lead only to lose 3-1 against the Habs in game 7. Toronto goaltender Jack Campbell, who was very emotional following the loss, was particularly hard on himself.
The goal he's referring to was the first of the game scored by Brendan Gallagher, a wrist shot that found the five-hole to beat Campbell clean (the video is below). It was honestly a pretty nice wrister, but Campbell insisted he should have had it.
Campbell has nothing to be ashamed of. He was Toronto's best player besides William Nylander in the series and gave the Leafs a chance to win every night. If blame has to the placed, Auston Matthews and Mitch Marner have to take a healthy dose of it. The two forwards, who make over $20 million combined per season, had just one goal between them in the series.